답안 #39874 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
39874	2018-01-23T07:48:51 Z	aome	Fireworks (APIO16_fireworks)	C++14	100 / 100	289 ms	77056 KB

fireworks

#include <bits/stdc++.h>
using namespace std;

const int N = 300005;

struct Node {
	long long startingValue;
	long long startingSlope;
	priority_queue<long long> pq;
};

int n, m, c[N], p[N];
vector<int> G[N];
Node a[N];

void dfs(int u) {
	if (u > n) return;
	int mx = 0;
	for (auto v : G[u]) {
		dfs(v);
		if (!mx || a[v].pq.size() > a[mx].pq.size()) mx = v;
	}
	swap(a[mx], a[u]);
	for (auto v : G[u]) {
		if (v == mx) continue;
		while (a[v].pq.size()) {
			a[u].pq.push(a[v].pq.top()), a[v].pq.pop();
		}
		a[u].startingValue += a[v].startingValue;
		a[u].startingSlope += a[v].startingSlope;
	}
	while (a[u].startingSlope + a[u].pq.size() > 1) a[u].pq.pop();
	long long x1 = a[u].pq.top(); a[u].pq.pop();
	long long x0 = a[u].pq.top(); a[u].pq.pop();
	a[u].startingValue += c[u];
	a[u].pq.push(x0 + c[u]), a[u].pq.push(x1 + c[u]);
}

int main() {
	ios::sync_with_stdio(false);
	cin >> n >> m;
	for (int i = 2; i <= n + m; ++i) {
		cin >> p[i] >> c[i];
		G[p[i]].push_back(i);
	}
	for (int i = n + 1; i <= n + m; ++i) {
		a[i].startingSlope = -1;
		a[i].startingValue = c[i];
		a[i].pq.push(c[i]), a[i].pq.push(c[i]);
	}
	dfs(1);
	vector<long long> v;
	while (a[1].pq.size()) {
		v.push_back(a[1].pq.top()), a[1].pq.pop();
	}
	reverse(v.begin(), v.end());
	long long cur = 0;
	long long curSlope = a[1].startingSlope;
	long long res = a[1].startingValue;
	// cout << curSlope << ' ' << res << '\n';
	// for (auto i : v) cout << i << ' '; cout << '\n';
	for (int i = 0; i < v.size(); ++i) {
		res += (v[i] - cur) * curSlope, curSlope++, cur = v[i];
	}
	cout << res;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:62:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < v.size(); ++i) {
                    ^

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	25620 KB	Output is correct
2	Correct	6 ms	25620 KB	Output is correct
3	Correct	6 ms	25620 KB	Output is correct
4	Correct	0 ms	25620 KB	Output is correct
5	Correct	4 ms	25620 KB	Output is correct
6	Correct	6 ms	25620 KB	Output is correct
7	Correct	13 ms	25620 KB	Output is correct
8	Correct	7 ms	25620 KB	Output is correct
9	Correct	3 ms	25620 KB	Output is correct
10	Correct	3 ms	25620 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	25620 KB	Output is correct
2	Correct	6 ms	25620 KB	Output is correct
3	Correct	0 ms	25620 KB	Output is correct
4	Correct	7 ms	25620 KB	Output is correct
5	Correct	6 ms	25620 KB	Output is correct
6	Correct	7 ms	25620 KB	Output is correct
7	Correct	3 ms	25620 KB	Output is correct
8	Correct	6 ms	25620 KB	Output is correct
9	Correct	3 ms	25620 KB	Output is correct
10	Correct	3 ms	25620 KB	Output is correct
11	Correct	3 ms	25620 KB	Output is correct
12	Correct	3 ms	25620 KB	Output is correct
13	Correct	3 ms	25620 KB	Output is correct
14	Correct	5 ms	25620 KB	Output is correct
15	Correct	9 ms	25620 KB	Output is correct
16	Correct	6 ms	25620 KB	Output is correct
17	Correct	7 ms	25620 KB	Output is correct
18	Correct	6 ms	25620 KB	Output is correct
19	Correct	3 ms	25620 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	25620 KB	Output is correct
2	Correct	6 ms	25620 KB	Output is correct
3	Correct	6 ms	25620 KB	Output is correct
4	Correct	0 ms	25620 KB	Output is correct
5	Correct	4 ms	25620 KB	Output is correct
6	Correct	6 ms	25620 KB	Output is correct
7	Correct	13 ms	25620 KB	Output is correct
8	Correct	7 ms	25620 KB	Output is correct
9	Correct	3 ms	25620 KB	Output is correct
10	Correct	3 ms	25620 KB	Output is correct
11	Correct	4 ms	25620 KB	Output is correct
12	Correct	6 ms	25620 KB	Output is correct
13	Correct	0 ms	25620 KB	Output is correct
14	Correct	7 ms	25620 KB	Output is correct
15	Correct	6 ms	25620 KB	Output is correct
16	Correct	7 ms	25620 KB	Output is correct
17	Correct	3 ms	25620 KB	Output is correct
18	Correct	6 ms	25620 KB	Output is correct
19	Correct	3 ms	25620 KB	Output is correct
20	Correct	3 ms	25620 KB	Output is correct
21	Correct	3 ms	25620 KB	Output is correct
22	Correct	3 ms	25620 KB	Output is correct
23	Correct	3 ms	25620 KB	Output is correct
24	Correct	5 ms	25620 KB	Output is correct
25	Correct	9 ms	25620 KB	Output is correct
26	Correct	6 ms	25620 KB	Output is correct
27	Correct	7 ms	25620 KB	Output is correct
28	Correct	6 ms	25620 KB	Output is correct
29	Correct	3 ms	25620 KB	Output is correct
30	Correct	2 ms	25620 KB	Output is correct
31	Correct	6 ms	25620 KB	Output is correct
32	Correct	10 ms	25620 KB	Output is correct
33	Correct	3 ms	25752 KB	Output is correct
34	Correct	5 ms	25752 KB	Output is correct
35	Correct	3 ms	25752 KB	Output is correct
36	Correct	3 ms	25752 KB	Output is correct
37	Correct	5 ms	25888 KB	Output is correct
38	Correct	6 ms	25884 KB	Output is correct
39	Correct	9 ms	25884 KB	Output is correct
40	Correct	9 ms	26328 KB	Output is correct
41	Correct	5 ms	26328 KB	Output is correct
42	Correct	7 ms	25752 KB	Output is correct
43	Correct	5 ms	26128 KB	Output is correct
44	Correct	9 ms	26008 KB	Output is correct
45	Correct	9 ms	26012 KB	Output is correct
46	Correct	11 ms	26064 KB	Output is correct
47	Correct	0 ms	26048 KB	Output is correct
48	Correct	0 ms	26052 KB	Output is correct
49	Correct	3 ms	26088 KB	Output is correct
50	Correct	6 ms	25936 KB	Output is correct
51	Correct	7 ms	25936 KB	Output is correct
52	Correct	15 ms	26060 KB	Output is correct
53	Correct	3 ms	26036 KB	Output is correct
54	Correct	12 ms	26036 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	25620 KB	Output is correct
2	Correct	6 ms	25620 KB	Output is correct
3	Correct	6 ms	25620 KB	Output is correct
4	Correct	0 ms	25620 KB	Output is correct
5	Correct	4 ms	25620 KB	Output is correct
6	Correct	6 ms	25620 KB	Output is correct
7	Correct	13 ms	25620 KB	Output is correct
8	Correct	7 ms	25620 KB	Output is correct
9	Correct	3 ms	25620 KB	Output is correct
10	Correct	3 ms	25620 KB	Output is correct
11	Correct	4 ms	25620 KB	Output is correct
12	Correct	6 ms	25620 KB	Output is correct
13	Correct	0 ms	25620 KB	Output is correct
14	Correct	7 ms	25620 KB	Output is correct
15	Correct	6 ms	25620 KB	Output is correct
16	Correct	7 ms	25620 KB	Output is correct
17	Correct	3 ms	25620 KB	Output is correct
18	Correct	6 ms	25620 KB	Output is correct
19	Correct	3 ms	25620 KB	Output is correct
20	Correct	3 ms	25620 KB	Output is correct
21	Correct	3 ms	25620 KB	Output is correct
22	Correct	3 ms	25620 KB	Output is correct
23	Correct	3 ms	25620 KB	Output is correct
24	Correct	5 ms	25620 KB	Output is correct
25	Correct	9 ms	25620 KB	Output is correct
26	Correct	6 ms	25620 KB	Output is correct
27	Correct	7 ms	25620 KB	Output is correct
28	Correct	6 ms	25620 KB	Output is correct
29	Correct	3 ms	25620 KB	Output is correct
30	Correct	2 ms	25620 KB	Output is correct
31	Correct	6 ms	25620 KB	Output is correct
32	Correct	10 ms	25620 KB	Output is correct
33	Correct	3 ms	25752 KB	Output is correct
34	Correct	5 ms	25752 KB	Output is correct
35	Correct	3 ms	25752 KB	Output is correct
36	Correct	3 ms	25752 KB	Output is correct
37	Correct	5 ms	25888 KB	Output is correct
38	Correct	6 ms	25884 KB	Output is correct
39	Correct	9 ms	25884 KB	Output is correct
40	Correct	9 ms	26328 KB	Output is correct
41	Correct	5 ms	26328 KB	Output is correct
42	Correct	7 ms	25752 KB	Output is correct
43	Correct	5 ms	26128 KB	Output is correct
44	Correct	9 ms	26008 KB	Output is correct
45	Correct	9 ms	26012 KB	Output is correct
46	Correct	11 ms	26064 KB	Output is correct
47	Correct	0 ms	26048 KB	Output is correct
48	Correct	0 ms	26052 KB	Output is correct
49	Correct	3 ms	26088 KB	Output is correct
50	Correct	6 ms	25936 KB	Output is correct
51	Correct	7 ms	25936 KB	Output is correct
52	Correct	15 ms	26060 KB	Output is correct
53	Correct	3 ms	26036 KB	Output is correct
54	Correct	12 ms	26036 KB	Output is correct
55	Correct	11 ms	26316 KB	Output is correct
56	Correct	46 ms	28628 KB	Output is correct
57	Correct	72 ms	30180 KB	Output is correct
58	Correct	95 ms	32152 KB	Output is correct
59	Correct	136 ms	33848 KB	Output is correct
60	Correct	182 ms	35396 KB	Output is correct
61	Correct	216 ms	38224 KB	Output is correct
62	Correct	236 ms	39352 KB	Output is correct
63	Correct	289 ms	41436 KB	Output is correct
64	Correct	285 ms	41812 KB	Output is correct
65	Correct	104 ms	77056 KB	Output is correct
66	Correct	117 ms	77056 KB	Output is correct
67	Correct	161 ms	34992 KB	Output is correct
68	Correct	189 ms	62144 KB	Output is correct
69	Correct	222 ms	58740 KB	Output is correct
70	Correct	253 ms	58740 KB	Output is correct
71	Correct	236 ms	58992 KB	Output is correct
72	Correct	232 ms	58800 KB	Output is correct
73	Correct	213 ms	55184 KB	Output is correct
74	Correct	228 ms	55392 KB	Output is correct
75	Correct	221 ms	55856 KB	Output is correct
76	Correct	233 ms	55904 KB	Output is correct
77	Correct	241 ms	55316 KB	Output is correct
78	Correct	212 ms	53688 KB	Output is correct
79	Correct	227 ms	53468 KB	Output is correct

답안 #39874

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 19.0 / 19.0

Subtask #3 29.0 / 29.0

Subtask #4 45.0 / 45.0

Subtask #1
7.0 / 7.0

Subtask #2
19.0 / 19.0

Subtask #3
29.0 / 29.0

Subtask #4
45.0 / 45.0